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Table 1 Distribution of NIH Support of Extramural Research Among Humans, Laboratory Mammals, and Other Research Subjects, Expressed as Percentages of Total Dollars and of Total Projects and Subprojects.a

From: Is the use of sentient animals in basic research justifiable?

Subject Fiscal Year Research Dollars, % Extramural Total Projects And Subprojects, %
Humans 1977 27.5 32.4
  1978 26.8 31.2
  1979 26.8 29.2
  1980 25.0 28.9
  1981 23.8 29.7
  1982 23.2 31.5
  1983 22.9 32.2
Mammals 1977 43.5 41.9
  1978 44.0 42.5
  1979 44.9 43.8
  1980 45.0 44.2
  1981 47.3 44.1
  1982 48.1 43.5
  1983 47.9 42.7
Otherb 1977 29.4 25.6
  1978 29.3 26.3
  1979 28.2 27.0
  1980 29.8 26.9
  1981 28.9 26.0
  1982 28.7 25.0
  1983 29.2 25.1
  1. aUnpublished information provided by Division of Research Resources, National Institutes of Health.
  2. bThis category includes invertebrates, nonmammalian vertebrates, bacteria, viruses, mathematical and computer simulations, and other subjects.